Flora of North America species comparison

ascending to erect, (37–)80–150 cm, glabrous, not glaucous.

ascending to erect, 5–20(–30) cm, retrorsely hairy.

basal and cauline, not leathery, glabrous;

basal and proximal cauline 65–160 × 15–40 mm, blade oblanceolate, base tapered, margins entire or slightly crenulate, apex acute;

cauline 3–8 pairs, short-petiolate or sessile, (16–)40–170 × (5–)12–35 mm, blade lanceolate, base tapered to clasping, margins entire, apex acute.

basal and cauline, not leathery, retrorsely hairy;

basal and proximal cauline petiolate, 12–55(–75) × 4–12 mm, blade elliptic to spatulate, base tapered, margins entire or obscurely and remotely serrate, apex rounded to obtuse or acute;

cauline 2–5 pairs, short-petiolate or sessile, 19–65 × 2–8 mm, blade lanceolate to oblanceolate, base truncate to tapered, margins entire or remotely serrate, apex obtuse to acute.

interrupted, conic, 22–35(–60) cm, axis glabrous or sparsely glandular-pubescent distally, verticillasters 3–8, cymes 5–19-flowered, 2 per node;

proximal bracts lanceolate, 8–47(–60) × 3–16(–25) mm, margins entire;

peduncles and pedicels ascending, glabrous or sparsely glandular-pubescent.

continuous, cylindric, 2–10 cm, axis densely glandular-pubescent, verticillasters 3–8, cymes 3–5-flowered, 2 per node;

proximal bracts lanceolate, 18–70 × 3–8 mm;

peduncles and pedicels densely glandular-pubescent.

calyx lobes ovate, 3–5 × 1–2 mm, glandular-pubescent;

corolla white to light lavender, without nectar guides, funnelform, 20–22 mm, glandular-pubescent externally, glabrous internally, tube 5–6 mm, throat abruptly inflated, 5–6 mm diam., 2-ridged abaxially;

stamens included, pollen sacs parallel, saccate, 0.8–1 mm, dehiscing incompletely, distal 2/3 indehiscent, connective splitting, sides glabrous, sutures papillate;

staminode 10–13 mm, exserted, 0.3–0.5 mm diam., tip straight to recurved, distal 3–4 mm sparsely pubescent, hairs yellowish, to 0.3 mm;

style 7–10 mm.

calyx lobes lanceolate, 4.5–7 × 1.1–1.8 mm, glandular-pubescent;

corolla lavender to bluish lavender or violet, with reddish violet nectar guides, ventricose, 10–14 mm, sparsely to densely white- or yellowish lanate internally abaxially, tube 4–6 mm, throat abruptly inflated, ± constricted at orifice, 4–5 mm diam., rounded abaxially;

stamens included, pollen sacs opposite, explanate, 0.6–0.9 mm, dehiscing completely, sutures smooth;

staminode 9–10 mm, prominently exserted, 0.2 mm diam., tip coiled, distal 5–6 mm densely pubescent, hairs orange or orangish yellow, to 1.2 mm;

style 7–9 mm.

5–8 × 4–5 mm, glabrous.

3–6 × 3–5 mm.